Lifting-jack.



J. W. GADDIS.

LIFTING JACK.

v APPLICATION nun JULY 11,1910.

Patented Oct. 25, 1910.

54 40mm Joizz W wvcmamq UNITED STATES PATENT OFFICE.

JOHN W. GADDIS, OF PRINCETON, INDIANA.

LIFTING-JACK.

To all whom it may concern:

Be it known that I, JOHN W. GADDIS, a citizen of the United States,residing at the city of Princeton, in the county of Gibson and State ofIndiana, have invented certain new and useful Improvements in LiftingJacks; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appert-a-ins to make and use the same.

This invention relates to an improved lifting jack.

The object of the invention is to provide a simply constructed, strong,and efficient device of this character.

\Vith this and other objects in View, the invention consists of certainnovel features of construction, combination and arrangement of parts aswill be more fully described and particularly pointed out in theappended claims.

In the accompanying drawings :-Figure 1 represents a perspective View ofone form of this lifting Jack in the position assumed during the liftingoperation; Fig. l is a side elevation thereof showing the deviceapplied; Fig. 2 represents a transverse section thereof; Fig. 3 is aperspective view of another form of the invention; and Fig. 4 is an endelevation thereof.

In the embodiment of the invention illustrated in Figs. 1 and 2, asupporting member is shown, preferably in the form of a bail or invertedU-shaped member 1, which is preferably constructed of a metal rod bentinto the desired shape. A lifting member or lever 2, is pivotallymounted on the cross bar of the member 1 and is preferably constructedof a heavy met-a1 rod or bar bent intermediately of its ends with theside members thereof provided with eyes, as 3, for pivotal connectionwith said cross bar of the member 1, the ends of the side members of themember 2 being preferably intertwined to form a strong operating lever.The loopshaped or bent portion of-the member 2 is preferably bent toform an axle engaging member at having a laterally extending point 5 forinsertion under the article to be lifted.

In the operation of this improved lifting jack, the legs of the member 1are engaged Specification of Letters Patent. Patented Oct. 25, 1910,Application filed July 11, 1910. Serial No. 521,355.

with the ground or other supporting surface and the twisted handleportion of the lever is raised to lower the point 5 in position to beinserted under the article to be lifted, such for instance, as a wagonaxle. The downward movement of said handle causes the point 5 to beforced upwardly under the article engaged and causes it to drop into thebent receiving portion 4, and a further downward movement of said handlewill elevate the article engaging member to any desired height.

In the form shown in Figs. 3 and 4, the supporting member is alsopreferably made in the form of a bail or inverted U-shaped member 6, andthe operating lever 7 is pivotally connected with the cross bar thereof,being preferably constructed of a heavy metal rod or bar bent to form aloop-like article engaging member 8, which is preferably provided with arubber covering 9 adapted to prevent injury to the article being lifted.The side members of this member 8 are bent to form eyes for pivotalengagement with the cross bar of the member 6 and the ends thereof areconnected together preferably by twisting, as shown in Fig. 3, whereby astrong lifting lever is produced.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claims.

WVhat I claim as my invention is l. A lifting jack comprising asubstantially inverted U-shaped supporting member, a lifting leverfulcrumed to the cross bar of said supporting member composed of a heavymetal rod bent intermediately of its ends to form an article engagingmember, and an operating handle having eyes for pivotal engagement withsaid cross bar.

2. A lifting jack comprising an inverted U-shaped member, a liftinglever composed of a rod bent intermediately of its ends and having theterminals thereof intertwined to set my hand in presence (if twosubscribing form a handle \vlth eyes formed 1ntermed1- Witnesses.

ately of the ends of said lever and pivotally I engaged With the crossbar of said support- JOHN (IADDIS' 5 ing member, and an article engagingmem- Wit ber formed at the bent end of said lever. K J W In testimonywhereof I have hereunto J. V. LEWIS.

